<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<iframe style="width: 1000px;height: 600px;" name="postIframe" src=""></iframe>
<form target="postIframe" action="https://api.flvsp.com/?skin=47ks&url=https://v.qq.com/x/cover/21z0kvwqvopae1s/21z0kvwqvopae1s.html" method="post">
    <input type="submit" value="submit">
</form>
<script src="jquery-1.10.2.min.js"></script>

https://v.qq.comhttp://v.qq.com/x/cover/yoz60y87rdgl1vp/y00240ny2xe.html
</body>
</html>